[Rails] Re: Captcha conception

So, I have another one problem. How can I do a method in controller,
that the same ".valid_with_captcha?"

When I puts to application_controller.rb

> def valid_with_captcha?
> if self.valid? and captcha_valid? then true else false end
> end

And, supposably, in users_controller.rb

> def update
> if @user.valid_with_captcha?
> save_code
> end
> end

When I'm updating, I see this:

> undefined method `valid_with_captcha?' for #<User:0x00000003f8e6b8>

What's wrong?

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